Home / 42,190.32-63,289.80-15,917.16

Finding the Fourth Proportional to 42,190.32, 63,289.80 and 15,917.16

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Solution

The fourth proportional to 42,190.32, 63,289.80 and 15,917.16 is: 23,877.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,190.32 : 63,289.80 = 15,917.16 : x
  2. Step 2: Convert to fraction form
    42,190.32/63,289.80 = 15,917.16/x
  3. Step 3: Cross multiply
    42,190.32x = 63,289.80 × 15,917.16
  4. Step 4: Simplify right side
    42,190.32x = 1,007,393,872.97
  5. Step 5: Solve for x
    x = 1,007,393,872.97/42,190.32
  6. Step 6: Final answer
    x = 23,877.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.